139211-87-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139211-87-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,1 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 139211-87:
(8*1)+(7*3)+(6*9)+(5*2)+(4*1)+(3*1)+(2*8)+(1*7)=123
123 % 10 = 3
So 139211-87-3 is a valid CAS Registry Number.
139211-87-3Relevant academic research and scientific papers
Synthesis and reactions of functionalized perfluoroalkyl sulfones
Hanack,Bailer,Hackenberg,Subramanian
, p. 1205 - 1208 (2007/10/02)
The hitherto unknown 2-aryl-1-(perfluoroalkanesulfonyl)acrylonitriles 9(R(F) = CF3, C4F9) were prepared by Knoevenagel condensation of (perfluoroalkanesulfonyl)acetonitriles 7 with aromatic aldehydes. The nitriles 7 were p
